.jst_main {
  background-color: #F0F2F5;
  width: 100%;
  height: 95.5vh;
}

.jst_head {
  position: relative;
  top: 15px;
  left: 15px;
  right: 15px;
}

.jst_content {
  width: 98%;
  overflow: auto;
  background-color: #fff;
  padding-bottom: 20px;
}